function showUrl(value) {
	return "http://" + value + "";
}
Ext.onReady(function() {
			var data = [{
						id : 1,
						name : 'EasyJWeb',
						organization : 'EasyJF',
						homepage : 'www.easyjf.com'
					}, {
						id : 2,
						name : 'jfox',
						organization : 'huihoo',
						homepage : 'www.huihoo.org'
					}, {
						id : 3,
						name : 'jdon',
						organization : 'jdon',
						homepage : 'www.jdon.com'
					}, {
						id : 4,
						name : 'springside',
						organization : 'springside',
						homepage : 'www.springside.org.cn'
					}];
			var store = new Ext.data.JsonStore({
						data : data,
						fields : ["id", "name", "organization", "homepage"]
					});
			var colM = new Ext.grid.ColumnModel([{
						header : "项目名称",
						dataIndex : "name",
						sortable : true
					}, {
						header : "开发团队",
						dataIndex : "organization",
						sortable : true
					}, {
						header : "网址",
						dataIndex : "homepage",
						renderer : showUrl
					}]);
			var grid = new Ext.grid.GridPanel({
						renderTo : "hello",
						title : "中国Java开源产品及团队",
						height : 200,
						width : 600,
						cm : colM,
						store : store,
						autoExpandColumn : 2
					});
		});